Classification Comparison of Machine Learning Algorithms Using Two Independent CAD Datasets

Meliz Yuvalı, Belma Yaman and Özgür Tosun
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Meliz Yuvalı: Department of Biostatistics, Faculty of Medicine, Near East University, Nicosia 99138, Cyprus
Belma Yaman: Department of Cardiology, Ankara Şehir Hastanesi, Ankara 06800, Turkey
Özgür Tosun: Department of Biostatistics, Faculty of Medicine, Near East University, Nicosia 99138, Cyprus

Mathematics, 2022, vol. 10, issue 3, 1-15

Abstract: In the last few decades, statistical methods and machine learning (ML) algorithms have become efficient in medical decision-making. Coronary artery disease (CAD) is a common type of cardiovascular disease that causes many deaths each year. In this study, two CAD datasets from different countries (TRNC and Iran) are tested to understand the classification efficiency of different supervised machine learning algorithms. The Z-Alizadeh Sani dataset contained 303 individuals (216 patient, 87 control), while the Near East University (NEU) Hospital dataset contained 475 individuals (305 patients, 170 control). This study was conducted in three stages: (1) Each dataset, as well as their merged version, was subject to review separately with a random sampling method to obtain train-test subsets. (2) The NEU Hospital dataset was assigned as the training data, while the Z-Alizadeh Sani dataset was the test data. (3) The Z-Alizadeh Sani dataset was assigned as the training data, while the NEU hospital dataset was the test data. Among all ML algorithms, the Random Forest showed successful results for its classification performance at each stage. The least successful ML method was kNN which underperformed at all pitches. Other methods, including logistic regression, have varying classification performances at every step.

Keywords: coronary artery disease (CAD); machine learning; logistic regression; validation; support vector machine (SVM) (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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